混合双层蜂窝夹层结构抗侵彻性能分析
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摘要
利用LS-DYNA有限元分析软件对弹丸侵彻两种单层蜂窝夹层结构以及由单层结构相互组合的4种混合双层蜂窝结构进行数值模拟,并对6种结构的抗侵彻性能进行分析。研究结果表明:当蜂窝直径不同,蜂窝胞元壁厚、蜂窝芯层厚度、上下面板厚度相同时,混合双层蜂窝夹层结构的抗侵彻性能不同。6种结构的抗侵彻能力由大到小分别是孔径为3 mm的混合双层蜂窝结构、上层孔径3 mm下层孔径6 mm的混合双层蜂窝结构、孔径为6 mm的混合双层蜂窝结构、上层孔径6 mm下层孔径3 mm的混合双层蜂窝结构、孔经为3 mm的单层蜂窝结构、孔径为6 mm的单层蜂窝结构。
This paper used LS-DYNA finite element analysis software to numerically simulate two kinds of single-layer honeycomb sandwich structures and four mixed double-layer honeycomb structures with single layer structure combined with each other, and anti-penetration of six structures. Performance was analyzed. The results show that the anti-penetration performance of the mixed double-layer honeycomb sandwich structure is different when the honeycomb diameter is different,and the cell thickness of the honeycomb cell,the thickness of the honeycomb core layer,and the thickness of the upper and lower panels are the same. The anti-penetration ability of the six structures is a mixed double-layer honeycomb structure with a pore size of 3 mm,a mixed double-layer honeycomb structure with an aperture of 3 mm and a bottom aperture of 6 mm,a mixed double-layer honeycomb structure with a pore diameter of 6 mm,and an upper aperture of 6 mm. A mixed double-layer honeycomb structure has a bottom hole diameter of 3 mm,a single-layer honeycomb structure has a hole diameter of 3 mm,and a single-layer honeycomb structure has a hole diameter of 6 mm.
This paper used LS-DYNA finite element analysis software to numerically simulate two kinds of single-layer honeycomb sandwich structures and four mixed double-layer honeycomb structures with single layer structure combined with each other, and anti-penetration of six structures. Performance was analyzed. The results show that the anti-penetration performance of the mixed double-layer honeycomb sandwich structure is different when the honeycomb diameter is different,and the cell thickness of the honeycomb cell,the thickness of the honeycomb core layer,and the thickness of the upper and lower panels are the same. The anti-penetration ability of the six structures is a mixed double-layer honeycomb structure with a pore size of 3 mm,a mixed double-layer honeycomb structure with an aperture of 3 mm and a bottom aperture of 6 mm,a mixed double-layer honeycomb structure with a pore diameter of 6 mm,and an upper aperture of 6 mm. A mixed double-layer honeycomb structure has a bottom hole diameter of 3 mm,a single-layer honeycomb structure has a hole diameter of 3 mm,and a single-layer honeycomb structure has a hole diameter of 6 mm.
引文
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[7]袁胜刚.热力耦合条件下负泊松比蜂窝结构力学性能表征及优化设计[D].哈尔滨:哈尔滨工业大学,2017.
[8] GIULIA P,GABRIELLA E,VINCENZO C,et al. Single and double-layer honeycomb sandwich panels under impact loading[J]. International Journal of Impact Engineering,2018,121:77-90.
[2]辛亚军,张立伟,刘小蛮,等.蜂窝铝夹芯板动态冲击试验研究[J].机械强度,2018,40(4):802-809.
[3]孙光永,张敬涛,李世强,等.爆炸载荷下层级蜂窝铝夹芯板的动力响应分析[J].华南理工大学学报(自然科学版),2017,45(5):141-146.
[4]王栋.双层金属蜂窝夹层结构的设计与力学分析[D].哈尔滨:哈尔滨工业大学,2007.
[5]尹汉锋,文桂林,马传帅,等.蜂窝结构缓冲装置的优化设计[J].中国机械工程,2011,22(10):1153-1158.
[6]秦伟.蜂窝夹层结构装甲抗侵彻性能分析[D].太原:中北大学,2016.
[7]袁胜刚.热力耦合条件下负泊松比蜂窝结构力学性能表征及优化设计[D].哈尔滨:哈尔滨工业大学,2017.
[8] GIULIA P,GABRIELLA E,VINCENZO C,et al. Single and double-layer honeycomb sandwich panels under impact loading[J]. International Journal of Impact Engineering,2018,121:77-90.